CN105522149B - Laminated forming device - Google Patents
Laminated forming device Download PDFInfo
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- CN105522149B CN105522149B CN201510680753.6A CN201510680753A CN105522149B CN 105522149 B CN105522149 B CN 105522149B CN 201510680753 A CN201510680753 A CN 201510680753A CN 105522149 B CN105522149 B CN 105522149B
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- Prior art keywords
- dividing
- hyphen
- word
- laser
- blade
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/214—Doctor blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
- B29C64/236—Driving means for motion in a direction within the plane of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/264—Arrangements for irradiation
- B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Powder Metallurgy (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention provides a kind of laminated forming device (10), it includes powder bed forming apparatus (20), spreader head (30), servomotor (16), laser irradiation device (40), numerical control device (52), laser control apparatus (54) and computer aided manufacture system device (56).Blade (31) moves along horizontal single shaft direction and forms powder bed in defined forming area.Laser control apparatus (54) is controlled laser irradiation device (40), and the range of exposures of laser beam is calculated for each powder bed.Numerical control device (52) obtains the data of range of exposures from laser control apparatus (54), and output mobile instructs, so that forming area of the blade (31) beyond range of exposures is with than the fireballing speed movement of dividing a word with a hyphen at the end of a line of dividing a word with a hyphen at the end of a line set in advance for being suitable for recoating.The present invention laminated forming device can by accurately change blade divide a word with a hyphen at the end of a line speed shorten recoating needed for time.
Description
Technical field
The present invention relates to a kind of laminated forming device (selective laser sintering device (selective laser
Sintering apparatus)), material powder is subject to smooth and is formed powder bed by it using blade (blade), right on one side
The regulation irradiation area irradiation laser beam of powder bed sinters it while generating required molding.
Background technology
Sintered type powder laminated forming device (powder sintering lamination molding apparatus)
Possess and the material powder of distribution is subject to smooth and forms the blade of powder bed in defined forming area.Utilizing laser beam
In the case that irradiation sinters powder bed, protruding part is formed on the surface of sinter layer sometimes.When blade collides at high speed
During projection, there is the risk of point of a knife breakage or the sinter layer stripping of blade, thus need to make blade move with low-down speed.
Patent Document 1 discloses a kind of laminated forming method, when being transitioned into low melt condition from high melting condition and
When forming next powder bed on the sinter layer of formation, the speed of dividing a word with a hyphen at the end of a line during by making the speed of dividing a word with a hyphen at the end of a line of blade than forming other powder beds
Degree is slow and increases and stops torque.According to the invention of patent document 1, sintering as defined in possibility because forming protruding part is high
Speed of dividing a word with a hyphen at the end of a line in region is slower, so as to suppress recoating (recoating) needed for temporal loss, and reduce shaping make
The risk that industry is interrupted or blade or sintering are damaged.
[prior art literature]
[patent document]
[patent document 1] Japanese Patent Laid-Open 2005-335203 publications
The content of the invention
[problem to be solved by the invention]
It is an object of the invention to provide can by accurately change blade divide a word with a hyphen at the end of a line speed shorten recoating needed for when
Between novel laminated forming device.Other purposes or advantages of the present invention will be described in follow-up explanation.
[technical means to solve problem]
The present invention includes：Blade 31, is divided by the molding space entirety comprising required molding with defined thickness
Each dividing layer of gained is cut, is moved along horizontal single shaft direction and forms powder bed in defined forming area；Laser irradiation dress
40 are put, laser beam is irradiated to the regulation irradiation area in forming area；Laser control apparatus 54, carries out laser irradiation device 40
Control, and calculate the range of exposures of the laser beam on the horizontal single shaft direction of each dividing layer；And numerical control device 52,
The data of range of exposures are obtained from laser control apparatus 54, and output mobile instructs, so that blade 31 is beyond range of exposures
With than the fireballing speed movement of dividing a word with a hyphen at the end of a line of dividing a word with a hyphen at the end of a line set in advance for being suitable for recoating in the range of shaping.
[The effect of invention]
Laminated forming device according to the present invention, can be according to from swashing when forming powder bed in defined forming area
The data of the range of exposures that light control device obtains and the forming area beyond the irradiation area of laser beam, make blade with than suitable
Together in the fireballing speed movement of dividing a word with a hyphen at the end of a line of dividing a word with a hyphen at the end of a line for being formed at powder bed.As a result, it is possible at least accurately formed in irradiation area
Required uniform powder bed, and shorten the time needed for recoating, and then being capable of shortening forming time.
Brief description of the drawings
Fig. 1 is the side view for the summary for representing the laminated forming device 10 of the present invention.
Fig. 2 is the stereogram for the downside structure for representing the laminated forming device 10 of the present invention.
Fig. 3 is the stereogram for the spreader head (recoater head) 30 for representing the laminated forming device 10 of the present invention.
Fig. 4 is the block diagram of the composition for the control device for representing the laminated forming device 10 of the present invention.
Fig. 5 is change of the speed relative to position of dividing a word with a hyphen at the end of a line of the blade 31 in the laminated forming device 10 for represent the present invention
The figure of an example.
[explanation of symbol]
10：Laminated forming device
11：Molding room
12：Drive unit chamber
13：Bellows
14：Through lens
15：Flue gas disperser
16：Servomotor
17：Driving device
20：Powder bed forming apparatus
22：Workbench
24：Supporting mechanism
26：Transmission mechanism
30：Spreader head
31：Blade
32：Material accumulates case
33：Guide mechanism
34、35：Bearing
36、37：Guide rail
38：Pump orifice
40：Laser irradiation device
41：Laser scanning device
42：Laser oscillator
43：Punktal lens
44：Motor driver
52：Numerical control device
54：Laser control apparatus
56：CAM devices
58：Control device of electric motor
60、64：Driving current feedway
62：Actuator control device
A：Axis
B：Axis
F：Set speed of dividing a word with a hyphen at the end of a line
Fx：Divide a word with a hyphen at the end of a line speed
n、n-1：Dividing layer
Pe：Blade finally departs from the position on the S axis of range of exposures
Ps：Blade initially reaches the position on the S axis of range of exposures
S：Axis
α：Forming area
α′：It is molded scope
β：Irradiation area
β′：Range of exposures
γ：Sinter region
γ′：Sintering range
Embodiment
Fig. 1 schematically shows being monolithically fabricated for the laminated forming device 10 of embodiment.Fig. 2 extractions represent laminated forming
The downside structure of device 10.Fig. 3 partly represents spreader first 30.In Fig. 1, Fig. 2 and Fig. 3, omit and nothing of the present invention sometimes
The device of direct relation and the diagram of part.The composition of Fig. 1, Fig. 2 and Fig. 3 used below to the laminated forming device 10 of the present invention
Illustrate.
Hereinafter, forming area (molding region) α represents to form the whole region of powder bed.Irradiation area
(irradiation region) β represents the region to powder bed irradiation laser beam.Sinter region (sintering region)
γ expressions, in each dividing layer for being integrally split to form the molding space comprising required molding with specific thickness,
The region of the sinter layer formed by laser irradiation device 40 to irradiation region beta irradiation laser beam.Especially range of exposures
The model as the laser beam on the horizontal single shaft direction of the moving direction of blade 31 is irradiated in (irradiation range) β ' expressions
Enclose.Moreover, the scope of the sinter layer on sintering range (sintering range) γ ' expressions horizontal single shaft direction.Separately
Outside, shaping scope (molding range) α ' expressions form the scope of the powder bed on the horizontal single shaft direction.
The laminated forming device 10 of embodiment is sintered type metal dust laminated forming device.Laminated forming device 10 has
There are the molding room 11 and drive unit chamber 12 being formed in chamber.Before molding room 11 is configured at the body of laminated forming device 10
Side, drive unit chamber 12 are configured on rear side of body.Molding room 11 and drive unit chamber 12 by bellows (bellows) 13 and every
Open.Inert gas, Neng Gouzhi are supplied to molding room 11 and drive unit chamber 12 from inert gas feedway (not shown) respectively
It is few to remove oxygen as much as possible from chamber in shaping.Inert gas is, for example, nitrogen.
Forming area α is formed in molding room 11.Forming area α is removed the situation of material powder local dissemination consciously
Outside, it is consistent with spreading the region of material powder.Accommodate workbench 22 in molding room 11.Forming area α is generally formed in shaping
The upper surface whole region of platform 22.Workbench 22 with defined thickness in order to form powder bed, and every time when forming powder bed
Decline the height of the thickness equivalent to powder bed.
Powder bed forming apparatus 20 mainly includes：Workbench 22, is supported workbench 22 and makes 22 liters of workbench
The supporting mechanism 24 of drop, to the transmission mechanism 26 of 24 passing power of supporting mechanism, and comprising being driven to supporting mechanism 24
Motor (not shown) driving device.Moreover, powder bed forming apparatus 20 includes spreader first 30.On workbench 22 sometimes
Profiled sheeting is set.
Spreader first 30 as illustrated in the details in figure 3, includes blade 31, material accumulation case 32 and guide mechanism 33.Blade 31
Moved along horizontal single shaft direction, that is, body left and right directions and form powder bed in defined forming area α.Blade 31 clips and institute
State the central axis of the orthogonal length direction in horizontal single shaft direction and be arranged at the outline border lower edge two of material accumulation case 32 piecewise
Side.
In powder laminated forming method, the operation for being formed uniformly powder bed repeatedly is so-called recoating or brushing
(squeegeeing).The laminated forming device 10 of embodiment is formed to be following, i.e. workbench 22 declines required powder bed
Thickness, blade 31 moves along the altitude datum of upper surface.Therefore, compression material powder is hardly had in blade 31
Effect, recoats so as to be referred to as the operation in the present invention.
Drawing smoke (fume) is set on the spreader first 30 of embodiment and is discharged to the pump orifice outside molding room 11
38.In the upside of spreader first 30, possess not moving for material accumulation case 32 supplying material powder of the appropriate moment to spreader head
Dynamic material feeding apparatus (not shown).In order to make the material powder in shaping in material accumulation case 32 will not be insufficient, and suitable
32 supplementary material powder of case is accumulated to material from material feeding apparatus when the moment.
Guide mechanism 33 includes a pair of bearings 34, bearing 35, and a pair of of the axial wood accepted respectively by each bearing 34, bearing 35
That is guide rail 36, guide rail 37.In the laminated forming device 10 of embodiment, as shown in Fig. 2, setting drawing smoke on guide rail 36
Suction tube.Moreover, the supply pipe for supplying inert gas is set on guide rail 37.
Spreader first 30 is filled using servomotor 16 along guide rail 36, the guide rail 37 of guide mechanism 33 in laminated forming
Put and moved back and forth on 10 horizontal single shaft direction.Servomotor 16 according to the move exported from numerical control device 52 and
Acted.More specifically, servomotor 16 is by the electricity that is configured between numerical control device 52 and servomotor 16
58 location control of motivation control device.The rotation driving axis of servomotor 16 utilizes the transmission machine comprising ball-screw and nut
Structure and link with spreader first 30, the transmission mechanism is in a manner of it will not impact the action of powder bed forming apparatus 20
Arrange.
Laser irradiation device 40 irradiates laser beam to the defined irradiation area β of defined forming area.Laser irradiation dress
Put 40 as shown in detail in figure 2, including：The laser scanning device 41 of two current mirrors (galvanometer mirror) is included, is swashed
Optical generator 42, punktal lens 43, and multiple laser transfer components (not shown).
Laser beam with the predetermined energy exported from laser oscillator 42 reaches current mirror by laser transfer component.
Restrained by the laser beam that a pair of of current mirror reflects by punktal lens 43, and by being arranged at the transmission lens 14 of through hole, it is described logical
Hole is threaded through the top plate of chamber.Powder bed is irradiated to prespecified luminous point footpath by 43 convergent laser beam of punktal lens.
The laser scanning device 41 of laser irradiation device 40 is arranged on the top plate of the chamber of molding room 11.Laser scanning fills
Each current mirror for putting 41 possesses make the rotating driver of current mirror (actuator) respectively.Driver is according to laser control apparatus 54
Scan instruction and drive.Laser scanning device 41 utilizes laser control apparatus 54, the luminous point of laser beam is swept along defined
Path is retouched to move with defined translational speed.
Flue gas disperser 15 is set in a manner of surrounding and passing through lens 14, makes the flue gas of rising will not be directly with passing through thoroughly
Mirror 14 contacts, and prevents from being polluted by soot (soot) through lens 14 as window.Flue gas disperser 15 is in order to maintain into
Environment in type room 11, and spray identical with to the inert gas for forming molding room 11 with the chamber of drive unit chamber 12 supplies
Inert gas, and down form the laminar flow of inert gas.
Driving device 17 is arranged in drive unit chamber 12.Driving device 17 is the shifting of the cutting element of cutting apparatus
Dynamic device.Driving device 17 includes：First moving body, can put down along the horizontal single shaft direction with the moving direction as blade 31
Capable horizontal single shaft direction, i.e. body left and right directions move back and forth；And second moving body, along with the horizontal single shaft direction just
The horizontal single shaft direction handed over, i.e. body anteroposterior direction move back and forth.Processing head is installed in driving device 17, which possesses
Mandrel and it can be relatively moved along the vertical, that is, body above-below direction of the main shaft as cutting apparatus.Filled comprising driving
Put the specific composition illustration omitted of 17 cutting apparatus.
Fig. 4 schematically shows the specific composition of the control device of the laminated forming device 10 of embodiment.Fig. 5 is schematic
Ground represents change of the speed relative to position of dividing a word with a hyphen at the end of a line of blade 31.In Fig. 5, hollow arrow represents the moving direction of blade 31.With
Under, Fig. 1, Fig. 2 and Fig. 3 are suitably quoted, and using Fig. 4 and Fig. 5 to the control device of the laminated forming device 10 of embodiment
Form and illustrated with action and the action of blade 31.
In the laminated forming device 10 of embodiment, using as the control in the horizontal single shaft direction of the moving direction of blade 31
Axis is set to S axis, using as the horizontal single shaft direction of the moving direction of the first moving body of the driving device 17 of cutting apparatus
Control shaft be set to X-axis, be set to Y-axis using as the horizontal single shaft direction of the moving direction of the second moving body, processing head will be used as
The control shaft in vertical single shaft direction of moving direction be set to Z axis, using as the vertical single shaft side of the moving direction of workbench 22
To control shaft be set to U axis.Moreover, each control shaft of the current mirror of laser scanning device 41 is set to A axis and B axle.
The control device of laminated forming device 10 mainly includes：Numerical control device 52, laser control apparatus 54, Yi Jiji
Calculation machine aided manufacturing system (Computer Aided Manufacturing System, CAM) device 56, is arranged on using logical
On the personal computer believed line and be connected with numerical control device 52.
Numerical control device 52 respectively to blade 31, workbench 22, the driving device 17 of cutting apparatus, processing head and
Mandrel carries out moving control.In addition, numerical control device 52 can be at the same time to the X-axis, Y-axis, Z axis of driving device 17 and processing head
This three axis is controlled.Numerical control device 52 is as described in detail later, output mobile instruction, so that blade 31 is in irradiation model
Enclose that the shaping scope α ' of β ' in addition are interior, to divide a word with a hyphen at the end of a line speed F soon than the speed of dividing a word with a hyphen at the end of a line set in advance for being suitable for recoating, i.e. setting
Speed of dividing a word with a hyphen at the end of a line Fx is moved.Laser control apparatus 54 is scanned control to laser scanning device 41.
Servomotor 16 makes the spreader first 30 for possessing blade 31, along the horizontal single shaft of the moving direction as blade 31
Direction, that is, S direction of principal axis moves back and forth.Between numerical control device 52 and servomotor 16, set to servomotor 16
Carry out the control device of electric motor 58 of location control.Numerical control device 52 fills Motor Control in the form of signal or data
Put the instruction of 58 output mobiles.Servomotor 16 receives the driving current according to move from driving current feedway 60
Supply and spreader first 30 is moved with defined speed.Control device of electric motor 58 is using feedback signal to servomotor 16
Carry out location control.
In broad terms, laser scanning device 41 includes actuator control device 62 and driving current feedway 64.Laser
Control device 54 is according to the forming data for including scanning imaging system transmitted from numerical control device 52, with signal or data
Form exports scan instruction to actuator control device 62.Each motor driver 44 of laser scanning device 41 is supplied from driving current
Receive the supply of the driving current according to scan instruction to device 64, and current mirror is tilted to required direction.Driver control
Device 62 processed carries out location control using feedback signal to each motor driver 44 of laser scanning device 41.
CAM devices 56 send numerical control device 52 shaping of the irradiation condition comprising Numerical Control program and laser beam
Data.Forming data includes the data of the shape of the required molding in each dividing layer.Determine the forming area α in each dividing layer
In irradiation area β the shape data, obtained according to the wheel Guo shape of upper surface or lower surface, the upper surface or
Wheel Guo's shape of lower surface is with the thickness of the pre-determined powder bed of the solid state data (solid data) according to required molding
Wheel Guo's shape of upper surface or lower surface when degree is cut into slices.
Before shaping is started, numerical control device 52 obtains forming data from CAM devices 56.Numerical control device 52 into
Type data are analyzed.Numerical control device 52 by the data of the shape comprising required molding, laser beam scan pattern and
Forming data needed for the irradiation of laser beam including laser irradiation condition sends laser control apparatus 54 to.Hereinafter, by described in
Forming data needed for the irradiation of laser beam is referred to as radiation data.Why filled by numerical control device 52 to laser controlling
Put 54 transmission radiation datas and be in order to：It will be moved by numerical control device 52 comprising laser scanning device 41 and each of driving device 17
The action of most of moving body of kinetoplast is established association and is uniformly controlled, and is molded in continuous process.
When start shaping when, numerical control device 52 understand Numerical Control program and according to as indicated by Numerical Control program
Order move is output to control device of electric motor 58.Move, which is allocated, is output to each control device of electric motor,
Each control device of electric motor respectively to make blade 31 move servomotor 16, make workbench 22 move motor,
Controlled each servomotor and spindle motor of each moving body movement of the driving device 17 comprising cutting apparatus
System.
Moreover, " the shaping precedence data " of the sintering for representing to carry out which dividing layer are sent to by numerical control device 52
Laser control apparatus 54.Laser control apparatus 54 is whenever shaping precedence data are received, according to the segmentation of corresponding shaping order
The data of shape and the data of scan pattern of required molding in layer to carry out computing to the scanning pattern of laser beam.Laser
Control device 54 calculates the shape of actual irradiation area β according to the scanning pattern calculated.54 basis of laser control apparatus
The shape of irradiation area β is calculated for each dividing layer in the horizontal single shaft direction, that is, S axis in the direction moved as blade 31
The position of range of exposures β ', and it is sent to numerical control device 52.
Numerical control device 52 is when obtaining the data of range of exposures β ' from laser control apparatus 54, according to shaping precedence number
According to and thus when range of exposures β ' data carry out blade 31 speed calculate.Specifically, numerical control device 52 from
Blade 31 initially reaches the position Ps on the S axis of range of exposures β ', the position on S axis for finally departing from range of exposures β ' to blade 31
Between putting Pe, make blade 31 and divide a word with a hyphen at the end of a line speed F for setting always.Moreover, the shaping scope α ' in range of exposures β ' in addition is interior, numerical value
Control device 52 is with the side in the scope below speed of dividing a word with a hyphen at the end of a line in the maximum that can be set as the speed Fx that divides a word with a hyphen at the end of a line as fast as possible
Formula, divides a word with a hyphen at the end of a line speed F with setting acceleration to obtain velocity variations according to setting.
In addition, the move that the numerical control device 52 of the laminated forming device 10 of embodiment shown in Fig. 5 exports
In contained blade 31 position data, for the actual blade 31 recoated determined in 2 blades 31 by moving direction
Position.
To the numerical control device 52 of spreader first 30 output mobile instruction, can according to generated in CAM devices 56 into
Type data generate the data of range of exposures.However, the composition of the laminated forming device 10 of embodiment because according to can from swash
The actual irradiation area β that the scanning pattern of light beam obtains carrys out regulation range of exposures β ', thus without worrying setting mistake
There is advantage in terms of range of exposures.Especially in the midway of a succession of operations for forming, irradiated region is changed by laser control apparatus 54
In the case of the β of domain, more accurately it can make blade 31 and divided a word with a hyphen at the end of a line speed with being suitable for the safe setting of recoating range of exposures β ' is interior
Spend F movements.
In the control device of the laminated forming device 10 of embodiment, numerical control device 52 is carried out successively in shaping
The calculating and output of the range of exposures β ' of the output of move and each dividing layer of laser control apparatus 54.Therefore, for
The move of blade 31 obtains real-time operation before recoating, but still may calculate in advance in all dividing layers before the forming
Blade 31 move and laser scanning device 41 scan instruction, and operation result is stored in storage device.
In the laminated forming device 10 of embodiment, in the dividing layer n shown in Fig. 5, range of exposures β ' in addition into
Type scope α ' is interior to make speed ratio settings of the dividing a word with a hyphen at the end of a line speed F that divides a word with a hyphen at the end of a line of blade 31 fast, also can be changed in the dividing layer n-1 of lower floor with
The shaping scope α ' of the corresponding sintering range γ ' of sintering region γ of sinter layer in addition are interior, and the speed ratio settings that make to divide a word with a hyphen at the end of a line are divided a word with a hyphen at the end of a line speed
It is fast to spend F.
As long as however, do not survey obtain sintering region γ, then sinter region γ data just with the dividing layer n-1 of lower floor
Irradiation area β data it is roughly the same.Moreover, range of exposures β ' in the dividing layer n on upper strata with the dividing layer n-1 of lower floor
Sintering range γ ' position difference depend on required molding shape and each dividing layer thickness, but because according to setting plus
In the range of the relation of the velocity variations of speed is still in error.Therefore, even if appointing with range of exposures β ' and sintering range γ '
One data are the benchmark of the change of the speed of dividing a word with a hyphen at the end of a line of blade 31, and substantial action effect also hardly changes.
On the present invention laminated forming device, listed several examples, but be not limited to the lamination of embodiment into
Type device 10 is identical composition, can carry out various modifications in the range of the technological thought of the present invention is not departed from.It is for example, real
In the laminated forming device 10 for applying mode, a pair of of knife is set in the outline border lower edge both sides of the material accumulation case 32 of spreader first 30
Piece 31, also can be arranged at spreader first 30 by 1 blade.
Claims (5)
- A kind of 1. laminated forming device, it is characterised in that including：Blade, by the molding space comprising required molding is overall split with defined thickness obtained by each segmentation Layer, along horizontal single shaft direction move and defined forming area formed powder bed, it is specified that the forming area to be formed State the whole region of powder bed；Laser irradiation device, in the forming area defined irradiation area irradiation laser beam, it is specified that the irradiated region Domain is the region that the laser beam is irradiated to the powder bed；Laser control apparatus, is controlled the laser irradiation device, and calculates the level to each dividing layer The range of exposures of the laser beam on single shaft direction；AndNumerical control device, the irradiation for the dividing layer for being intended to be formed the powder bed is obtained from the laser control apparatus The data of scope, and output mobile instruct so that the blade beyond the range of exposures in the horizontal single shaft direction On the formation powder bed scope shaping in the range of with than the fireballing shifting of dividing a word with a hyphen at the end of a line set in advance for being suitable for recoating Scanning frequency degree moves.
- 2. laminated forming device according to claim 1, it is characterised in that including：Make the spreader head of the blade movement.
- 3. laminated forming device according to claim 2, it is characterised in that including：Make the servomotor and carried out to the servomotor that the spreader head is moved along the horizontal single shaft direction The control device of electric motor of location control, the numerical control device export the movement to the control device of electric motor and refer to Order.
- 4. laminated forming device according to claim 1, it is characterised in that：The numerical control device exports the move, to replace the range of exposures, and is being intended to form the powder bed The dividing layer lower floor the dividing layer in, using the laser irradiation device to the irradiation area irradiation it is described swash Light beam and in the range of the shaping beyond the sintering range of the sinter layer on the horizontal single shaft direction that is formed, with than advance The fireballing speed movement of dividing a word with a hyphen at the end of a line of dividing a word with a hyphen at the end of a line for being suitable for the recoating of setting.
- 5. laminated forming device according to claim 1, it is characterised in that：The speed of dividing a word with a hyphen at the end of a line for being suitable for the recoating is preset, and than being suitable for the fireballing speed of dividing a word with a hyphen at the end of a line of dividing a word with a hyphen at the end of a line of the recoating Spend for the speed of dividing a word with a hyphen at the end of a line as fast as possible of the blade movement can be made.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014214399A JP5777187B1 (en) | 2014-10-21 | 2014-10-21 | Additive manufacturing equipment |
| JP2014-214399 | 2014-10-21 |
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| Publication Number | Publication Date |
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| CN105522149A CN105522149A (en) | 2016-04-27 |
| CN105522149B true CN105522149B (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510680753.6A Active CN105522149B (en) | 2014-10-21 | 2015-10-19 | Laminated forming device |
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| Country | Link |
|---|---|
| US (1) | US9610732B2 (en) |
| JP (1) | JP5777187B1 (en) |
| CN (1) | CN105522149B (en) |
| DE (1) | DE102015117749A1 (en) |
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| JP5841649B1 (en) * | 2014-10-08 | 2016-01-13 | 株式会社ソディック | Additive manufacturing equipment |
| CN105150546A (en) * | 2015-09-29 | 2015-12-16 | 党金行 | Three-dimensional printer with powder laying monitoring device |
| JP6194043B1 (en) * | 2016-03-09 | 2017-09-13 | 株式会社松浦機械製作所 | 3D object modeling method |
| WO2017154148A1 (en) * | 2016-03-09 | 2017-09-14 | 技術研究組合次世代３Ｄ積層造形技術総合開発機構 | 3d additive manufacturing system, 3d additive manufacturing method, additive manufacturing control device, and control method and control program for additive manufacturing control device |
| JP6112693B1 (en) * | 2016-09-01 | 2017-04-12 | 株式会社ソディック | Additive manufacturing equipment |
| CN106363173B (en) * | 2016-12-12 | 2018-05-25 | 中国工程物理研究院材料研究所 | A kind of device and its implementation of the increasing material manufacturing of ultrasonic wave auxiliary laser |
| EP3434394A1 (en) * | 2017-07-24 | 2019-01-30 | Matsuura Machinery Corporation | Three-dimensional object shaping method |
| KR101945113B1 (en) * | 2017-07-31 | 2019-02-01 | 가부시키가이샤 마쓰우라 기카이 세이사쿠쇼 | Three-dimensional object shaping method |
| US11465358B2 (en) | 2017-08-02 | 2022-10-11 | Matsuura Machinery Corporation | Three-dimensional object shaping method |
| CN107790718B (en) * | 2017-11-09 | 2020-03-31 | 窦鹤鸿 | Control system of 3D printing equipment |
| US11400519B2 (en) | 2018-03-29 | 2022-08-02 | Arcam Ab | Method and device for distributing powder material |
| EP3572211B1 (en) * | 2018-05-23 | 2023-09-13 | Concept Laser GmbH | Apparatus and method for additively manufacturing three-dimensional objects |
| US11839914B1 (en) | 2019-01-31 | 2023-12-12 | Freeform Future Corp. | Process monitoring and feedback for metal additive manufacturing using powder-bed fusion |
| JP6680452B1 (en) * | 2019-04-05 | 2020-04-15 | 株式会社ソディック | Additive manufacturing method for 3D objects |
| DE102020003536A1 (en) * | 2020-06-13 | 2021-12-16 | Laempe Mössner Sinto Gmbh | Method for creating a 3D structure |
| NL2026034B1 (en) * | 2020-07-09 | 2022-03-15 | Additive Ind Bv | Apparatus and method for producing an object by means of additive manufacturing |
| NL2026035B1 (en) * | 2020-07-09 | 2022-03-15 | Additive Ind Bv | Method and apparatus for manufacturing an object by means of additive manufacturing |
| KR102416785B1 (en) * | 2020-11-12 | 2022-07-05 | 주식회사 덴티스 | Three dimensional printer and driving method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105522149A (en) | 2016-04-27 |
| JP5777187B1 (en) | 2015-09-09 |
| US9610732B2 (en) | 2017-04-04 |
| US20160107233A1 (en) | 2016-04-21 |
| DE102015117749A1 (en) | 2016-04-21 |
| JP2016078392A (en) | 2016-05-16 |
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